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Differentiation and trade-offs of root phosphorus acquisition strategies in different phosphorus efficiency genotypes of Chinese fir SCIE
期刊论文 | 2025 | PLANT AND SOIL
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Background and AimsChinese fir (Cunninghamia lanceolata), a vital afforestation species in southern China, exhibits genotypic variations in phosphorus (P) acquisition to adapt long-term soil P deficiency environment. This study aimed to elucidate how P-efficiency genotypes balance root morphology, rhizosphere exudation, and arbuscular mycorrhizal fungi (AMF) symbiosis to optimize P acquisition under varying soil P availability.MethodsFourteen genotypes with contrasting P-use efficiencies (PUE) were subjected to low-P (5 mg/kg) and high-P (30 mg/kg) treatments, with or without AMF inoculation. Root morphological traits, exudates, AMF colonization, and carbon-phosphorus allocation were analyzed.ResultsUnder low-P, high-P-efficiency (H-PUE) genotypes increased root length and surface area, reduced root diameter, and enhanced organic acid secretion and acid phosphatase activity. AMF inoculation under low-P suppressed root proliferation in H-PUE, while decreased acid phosphatase activity and dissolved organic carbon content, but increased organic acid concentration and AMF dependency. In contrast, low-P-efficiency (L-PUE) genotypes exhibited a degree of reliance on compensatory root biomass allocation and nonspecific dissolved organic carbon exudation. Principal component analysis revealed H-PUE genotypes synergized structural-symbiotic traits (e.g., fine roots, AMF colonization), whereas L-PUE genotypes relied on rhizosphere activation through acid phosphatase secretion.ConclusionFunctional differentiation in root P-acquisition strategies among Chinese fir genotypes is driven by carbon-phosphorus allocation trade-offs, where H-PUE genotypes optimize P uptake through integrated root morphological plasticity, targeted exudation, and AMF symbiosis, thereby minimizing carbon expenditure. This study elucidates the hierarchical coordination of root morphology, mycorrhizal collaboration, and exudate-mediated rhizosphere remodeling in woody plants, and provides mechanistic criteria for breeding P-efficient varieties and managing phosphorus-limited plantations.

Keyword :

Arbuscular mycorrhizal fungi Arbuscular mycorrhizal fungi Cunninghamia lanceolate Cunninghamia lanceolate Genotypic variation Genotypic variation Phosphorus acquisition strategies Phosphorus acquisition strategies Root functional traits Root functional traits

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GB/T 7714 Li, Ming , Cao, Zhengying , Zhang, Xinyu et al. Differentiation and trade-offs of root phosphorus acquisition strategies in different phosphorus efficiency genotypes of Chinese fir [J]. | PLANT AND SOIL , 2025 .
MLA Li, Ming et al. "Differentiation and trade-offs of root phosphorus acquisition strategies in different phosphorus efficiency genotypes of Chinese fir" . | PLANT AND SOIL (2025) .
APA Li, Ming , Cao, Zhengying , Zhang, Xinyu , Chen, Fenglin , Ma, Junjiao , Wang, Zeqing et al. Differentiation and trade-offs of root phosphorus acquisition strategies in different phosphorus efficiency genotypes of Chinese fir . | PLANT AND SOIL , 2025 .
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Differential effects of exogenous VOCs on the growth and stress responses of Cunninghamia lanceolata seedlings under low phosphorus SCIE
期刊论文 | 2025 , 25 (1) | BMC PLANT BIOLOGY
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This study investigates how exogenous volatile organic compounds (VOCs) influence the root responses of Cunninghamia lanceolata under nutrient limitations. Specifically, we assessed the differential effects of syringic acid and 1-butene on root morphology, phosphorus acquisition, and stress resilience. Clonal Chinese fir seedlings were utilized to test the effects of treatment with these two exogenous VOCs under both phosphorus supply (1.0 mM KH2PO4) and no phosphorus supply (0 mM KH2PO4) treatments in a controlled pot experiment. Compared to syringic acid, 1-butene significantly enhanced root morphological traits, including root length, specific surface area, and root volume. These morphological changes enhanced the root's ability to acquire phosphorus. Moreover, the addition of 1-butene increased the underground phosphorus use efficiency (PUE) by 25.6% compared to the addition of syringic acid. Furthermore, the addition of 1-butene stimulated higher activity of antioxidant enzymes such as superoxide dismutase (SOD) and peroxidase (POD). Proteomic analysis revealed that 1-butene induced significant changes in root protein expression, particularly in proteins associated with stress responses, phenylpropanoid biosynthesis, and phosphate transport. Compared to syringic acid, 1-butene promoted the differential expression of phosphate transporter proteins, indicating its beneficial effects on the root systems of Chinese firs under low-phosphorus stress. These findings underscore the potential of 1-butene in promoting root efficiency and phosphorus acquisition in forest species, providing insights for enhancing plant adaptation to nutrient limitations.

Keyword :

1-butene 1-butene Cunninghamia lanceolata Cunninghamia lanceolata Low P environment Low P environment Stress resistance Stress resistance Syringic acid Syringic acid Volatile organic compounds Volatile organic compounds

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GB/T 7714 Li, Yachao , Zhang, Hui , Liu, Jing et al. Differential effects of exogenous VOCs on the growth and stress responses of Cunninghamia lanceolata seedlings under low phosphorus [J]. | BMC PLANT BIOLOGY , 2025 , 25 (1) .
MLA Li, Yachao et al. "Differential effects of exogenous VOCs on the growth and stress responses of Cunninghamia lanceolata seedlings under low phosphorus" . | BMC PLANT BIOLOGY 25 . 1 (2025) .
APA Li, Yachao , Zhang, Hui , Liu, Jing , Li, Ming , Farooq, Taimoor Hassan , Ma, Xiangqing et al. Differential effects of exogenous VOCs on the growth and stress responses of Cunninghamia lanceolata seedlings under low phosphorus . | BMC PLANT BIOLOGY , 2025 , 25 (1) .
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Genetic Differentiation of Chinese Fir Populations From Mainland China and Taiwan as Revealed by Genotyping-By-Sequencing Analysis, With Implication for Taxonomic Position of the Species SCIE
期刊论文 | 2025 , 15 (4) | ECOLOGY AND EVOLUTION
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Climate change and strait isolation during the glacial period had a profound effect on the differentiation of gymnosperms on both sides of the Taiwan Strait. The taxonomic status and population structure of Cunninghamia konishii (Taiwan) and C. lanceolata (mainland China) remain contentious due to conflicting morphological and molecular evidence. Thus, we sampled 92 accessions from seven natural populations, six from mainland China and one from Taiwan, and conducted high-throughput genotyping-by-sequencing (GBS) analysis. The northern marginal population exhibited the lowest genetic diversity (theta pi = 4.828 x 10-3), while the Taiwan population had the highest (theta pi = 5.821 x 10-3), reflecting its role as a glacial refugium, while mainland populations retained lower diversity due to post-glacial bottlenecks. There was little difference in Tajima's D values of selection pressure between mainland China and Taiwan. However, significant gene flow (Nm = 2.839) was observed, combined with low FST values (0.072-0.122), which indicate low genetic differentiation among C. lanceolata and C. konishii. Migration analysis indicated a high probability of unidirectional gene flow from mainland China to Taiwan, with the Dongshan Land Bridge facilitating pre-glacial gene flow. We conclude that C. konishii represents an ecotype of C. lanceolata , shaped by environmental plasticity and incomplete isolation. This study enhances our understanding of the gene flow and evolutionary processes shaping the species and offers new insights into their taxonomic classification.

Keyword :

Chinese fir Chinese fir Genetic Diversity Genetic Diversity Genotyping by Sequencing (GBS) Genotyping by Sequencing (GBS) Population Structure Population Structure Single-Nucleotide Polymorphism (SNP) Discovery Single-Nucleotide Polymorphism (SNP) Discovery

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GB/T 7714 Zhang, Yajing , Sun, Yangyang , Zhong, Minchen et al. Genetic Differentiation of Chinese Fir Populations From Mainland China and Taiwan as Revealed by Genotyping-By-Sequencing Analysis, With Implication for Taxonomic Position of the Species [J]. | ECOLOGY AND EVOLUTION , 2025 , 15 (4) .
MLA Zhang, Yajing et al. "Genetic Differentiation of Chinese Fir Populations From Mainland China and Taiwan as Revealed by Genotyping-By-Sequencing Analysis, With Implication for Taxonomic Position of the Species" . | ECOLOGY AND EVOLUTION 15 . 4 (2025) .
APA Zhang, Yajing , Sun, Yangyang , Zhong, Minchen , Chen, Fenglin , Wang, Yaning , Tigabu, Mulualem et al. Genetic Differentiation of Chinese Fir Populations From Mainland China and Taiwan as Revealed by Genotyping-By-Sequencing Analysis, With Implication for Taxonomic Position of the Species . | ECOLOGY AND EVOLUTION , 2025 , 15 (4) .
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Effects of Planting Density on Branch Development and Spatial Distribution in Two Elite Chinese Fir (Cunninghamia lanceolata (Lamb.) Hook.) Clones SCIE
期刊论文 | 2025 , 16 (1) | FORESTS
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The development of branches on the lower part of the trunk plays a decisive role in the early growth of trees and influences the wood quality of their most valuable sections. This study investigated the effects of planting density on the horizontal and vertical spatial distribution, branch morphology, and branch quantity characteristics of two elite clones of Chinese fir (Cunninghamia lanceolata (Lamb.) Hook.), Yang 061 and Yang 020. The results revealed the following distinct responses between the two clones: Yang 061 exhibited significant reductions in branch base diameter and length under a higher planting density, alongside an increased frequency of small branches (<15 mm), but there was no significant effect on branch angles. In contrast, Yang 020 was primarily influenced by genetic factors, with planting density exerting minimal impact. This clone optimized resource allocation by promoting the mortality of lower branches through angle adjustments, resulting in negligible changes to branch development across different planting densities. Pronounced differences in vertical and horizontal branch distributions were observed in areas with significant light disparities, such as the middle crown and northeast direction, for both clones, with increased planting density exacerbating these differences. In conclusion, increasing the planting density of Yang 061 from 2500 to 3333 treesha(-1) can effectively reduce its branch size; whereas, increasing the planting density of Yang 020 from 3000 to 5100 treesha(-1) can slightly decrease its branch size without affecting its early rapid growth, thereby achieving a synergistic improvement in both timber yield and quality. These findings highlight the importance of interactions between genetic traits and planting density in shaping branch development and spatial distribution patterns, providing insights to optimize planting density for improving the productivity and wood quality of Cunninghamia lanceolata plantations.

Keyword :

branch morphology branch morphology clone selection clone selection Cunninghamia lanceolata Cunninghamia lanceolata forestry management forestry management planting density planting density spatial distribution spatial distribution

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GB/T 7714 Peng, Jun , Jiang, Yuhui , Shi, Lang et al. Effects of Planting Density on Branch Development and Spatial Distribution in Two Elite Chinese Fir (Cunninghamia lanceolata (Lamb.) Hook.) Clones [J]. | FORESTS , 2025 , 16 (1) .
MLA Peng, Jun et al. "Effects of Planting Density on Branch Development and Spatial Distribution in Two Elite Chinese Fir (Cunninghamia lanceolata (Lamb.) Hook.) Clones" . | FORESTS 16 . 1 (2025) .
APA Peng, Jun , Jiang, Yuhui , Shi, Lang , Xie, Shengfang , Zhang, Xinyu , Wu, Pengfei et al. Effects of Planting Density on Branch Development and Spatial Distribution in Two Elite Chinese Fir (Cunninghamia lanceolata (Lamb.) Hook.) Clones . | FORESTS , 2025 , 16 (1) .
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From Young to Over-Mature: Long-Term Cultivation Effects on the Soil Nutrient Cycling Dynamics and Microbial Community Characteristics Across Age Chronosequence of Schima superba Plantations SCIE
期刊论文 | 2025 , 16 (1) | FORESTS
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Optimizing forest management requires a comprehensive understanding of how soil properties and microbial communities evolve across different plantation ages. This study examines variations in soil nutrient dynamics, enzyme activities, and bacterial communities in Schima superba Gardn. & Champ plantations of 10, 15, 27, 55, and 64 years. By analyzing soil from depths of 0-20 cm, 20-40 cm, and 40-60 cm, we identified significant age-related trends in soil characteristics. Notably, nutrient contents, including total organic carbon (TOC), total phosphorus (TP), total carbon (TC), total nitrogen (TN), and nitrate nitrogen (NO3--N), as well as soil water content (SWC), peaked in 55-year-old mature plantations and decreased in 64-year-old over-mature plantations. Enzyme activities, such as urease, sucrase, and acid phosphatase, decreased with soil depth and exhibited notable differences across stand ages. Microbial community analysis indicated the predominance of Acidobacteria, Chloroflexi, Proteobacteria, Actinobacteria, and Verrucomicrobiota in nutrient cycling, with their relative abundances varying significantly with age and depth. Mature and over-mature plantations exhibited higher absolute abundances of functional genes related to methane metabolism, nitrogen, phosphorus, and sulfur cycling. Reduced calcium ion levels were also linked to lower gene abundance in carbon degradation, carbon fixation, nitrogen, and phosphorus cycling, while increased TOC, NH4+-N, NO3--N, and AP correlated with higher gene abundance in methane metabolism and phosphorus cycling. Our findings suggest that long-term cultivation of Schima superba enhances soil nutrient cycling. Calcium ion was identified as a significant factor in assessing soil properties and microbial dynamics across different stand ages, suggesting that extended plantation rotations can improve soil health and nutrient cycling.

Keyword :

Calcium ions Calcium ions microbial communities microbial communities nutrient dynamics nutrient dynamics plantation development plantation development Schima superba Schima superba

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GB/T 7714 Sun, Yangyang , Zhang, Yajing , Wang, Liyan et al. From Young to Over-Mature: Long-Term Cultivation Effects on the Soil Nutrient Cycling Dynamics and Microbial Community Characteristics Across Age Chronosequence of Schima superba Plantations [J]. | FORESTS , 2025 , 16 (1) .
MLA Sun, Yangyang et al. "From Young to Over-Mature: Long-Term Cultivation Effects on the Soil Nutrient Cycling Dynamics and Microbial Community Characteristics Across Age Chronosequence of Schima superba Plantations" . | FORESTS 16 . 1 (2025) .
APA Sun, Yangyang , Zhang, Yajing , Wang, Liyan , Zhang, Xinyu , Jiang, Yuhui , Tigabu, Mulualem et al. From Young to Over-Mature: Long-Term Cultivation Effects on the Soil Nutrient Cycling Dynamics and Microbial Community Characteristics Across Age Chronosequence of Schima superba Plantations . | FORESTS , 2025 , 16 (1) .
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不同发育阶段杉木树皮伤口分泌物数量和成分的比较
期刊论文 | 2025 , 54 (02) , 209-216 | 福建农林大学学报(自然科学版)
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【目的】探究不同发育阶段杉木树皮伤口分泌物数量和组成的差异,为揭示分泌物的作用和功能提供依据。【方法】以不同发育阶段杉木林分(幼龄林、中龄林、成熟林、过熟林)为研究对象,采用液相色谱—质谱(LC-MS)联用技术测定杉木树皮伤口分泌物化学成分,比较不同发育阶段杉木伤口分泌物数量和成分的差异。【结果】杉木树皮受伤后,不同发育阶段杉木伤口的分泌物数量存在显著差异(P<0.05),表现为过熟林>成熟林>中熟林>幼龄林。不同发育阶段杉木伤口分泌物的组成存在差异,利用LC-MS技术检测出306种代谢物,主要是萜烯类、有机酸和糖类物质,不同种代谢物数量总体表现为萜烯类>有机酸>糖类,中龄林、成熟林、过熟林的萜烯类化合物含量明显高于幼龄林。【结论】不同发育阶段杉木伤口的分泌物数量和成分存在差异,分泌物中不同物质相对含量总体上随杉木林龄的增加而增加。

Keyword :

伤口分泌物 伤口分泌物 发育阶段 发育阶段 杉木 杉木 液相色谱—质谱联用技术 液相色谱—质谱联用技术

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GB/T 7714 周柏屹 , 曾雅玲 , 孙麟钧 et al. 不同发育阶段杉木树皮伤口分泌物数量和成分的比较 [J]. | 福建农林大学学报(自然科学版) , 2025 , 54 (02) : 209-216 .
MLA 周柏屹 et al. "不同发育阶段杉木树皮伤口分泌物数量和成分的比较" . | 福建农林大学学报(自然科学版) 54 . 02 (2025) : 209-216 .
APA 周柏屹 , 曾雅玲 , 孙麟钧 , 江宇 , 朱嘉宁 , 范福金 et al. 不同发育阶段杉木树皮伤口分泌物数量和成分的比较 . | 福建农林大学学报(自然科学版) , 2025 , 54 (02) , 209-216 .
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Proteome-wide lysine acetylation profiling provides insights into the involvement of acetylation in the phosphate starvation response of Chinese fir roots SCIE
期刊论文 | 2025 , 236 | INDUSTRIAL CROPS AND PRODUCTS
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Phosphorus is a crucial yet frequently limiting nutrient in forest ecosystems, particularly in rapidly growing coniferous plantations within subtropical red soil regions. Phosphorus deficiency adversely affects soil fertility and productivity, presenting a significant challenge for Chinese fir (Cunninghamia lanceolata) plantations. Despite its importance, the impact of phosphorus limitation on Chinese fir roots and the role of acetylation modifications in regulating these responses are not well understood. This study investigates the morphological and physiological effects of varying phosphorus levels on Chinese fir roots, with a focus on acetylation modifications of proteins and their regulatory functions. Our results reveal that phosphate starvation leads to significant increases in root growth rate and cell size. Physiological assessments show that under phosphorus starvation, starch, sucrose and acid phosphatase fall, while oxalic, malic, citric, succinic, tartaric and maleic acids fluctuate variably over time. Through comprehensive acetylome analysis, we identified 201 acetylation sites on 185 proteins. Further analysis through acetylation and Parallel Reaction Monitoring (PRM) techniques indicated that phosphate starvation regulates the acetylation levels of ACO, LSC, and ACLY in the TCA cycle, PFP, ENO, and HK in Glycolysis/Gluconeogenesis, as well as SnRK2, PYR/PYL, and MPK6 in the ABA metabolic pathway. These findings highlight the essential role of acetylation in modulating the adaptability of Chinese fir roots to phosphorus deficiency through influence on multiple metabolic pathways and insights into the function of acetylation modifications in plant phosphorus metabolism.

Keyword :

Acetylation Acetylation Cunninghamia lanceolata Cunninghamia lanceolata Phosphate starvation Phosphate starvation PRM PRM Proteome Proteome

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GB/T 7714 Wang, Shuran , Zhong, Minchen , Zhang, Yajing et al. Proteome-wide lysine acetylation profiling provides insights into the involvement of acetylation in the phosphate starvation response of Chinese fir roots [J]. | INDUSTRIAL CROPS AND PRODUCTS , 2025 , 236 .
MLA Wang, Shuran et al. "Proteome-wide lysine acetylation profiling provides insights into the involvement of acetylation in the phosphate starvation response of Chinese fir roots" . | INDUSTRIAL CROPS AND PRODUCTS 236 (2025) .
APA Wang, Shuran , Zhong, Minchen , Zhang, Yajing , Li, Yachao , Chen, Fenglin , Tigabu, Mulualem et al. Proteome-wide lysine acetylation profiling provides insights into the involvement of acetylation in the phosphate starvation response of Chinese fir roots . | INDUSTRIAL CROPS AND PRODUCTS , 2025 , 236 .
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Root spatial distribution and architectural formation of Chinese fir plantations: changes in soil water and nutrients based on different slope positions SCIE
期刊论文 | 2025 , 144 (6) , 1645-1657 | EUROPEAN JOURNAL OF FOREST RESEARCH
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Improving forest soil quality through effective afforestation and management practices remain a global challenge and understanding the interactions between tree roots and their surrounding soil environment is essential. However, the dynamic relationships between forest tree roots and changing soil conditions are not well understood. This study investigated the adaptive characteristics of Chinese fir (Cunninghamia lanceolata) roots in response to variations in soil water and nutrient availability. We explored roots distribution, architecture, biomass allocation, and associated soil properties in 16-year-old Chinese fir plantations established across different slope positions. Our findings revealed that nutrient-rich surface soil (0-20 cm) varied significantly by slope position, with the upper slope exhibiting lower nutrient content. For example, phosphorus content at the upper slope averaged only 91.30% and 87.50% of that found on the middle and lower slopes, respectively. Additionally, soil moisture content increased as slope position decreased, reaching 15.87-25.86% on the lower slope. Root distribution was most extensive on the middle slope, with horizontal and vertical root spread averaging 2.58 +/- 0.18 m and 1.49 +/- 0.15 m, respectively. Across all slope positions, Chinese fir roots consistently exhibited a fishtail-shaped branching structure. As slope position decreased, soil water and nutrient resources became more abundant, the proportion of root biomass relative to total plant biomass also declined. On the lower slope, root biomass accounted for only 68.89% and 84.56% of the proportion observed on the upper and middle slopes, respectively. These results highlight the importance of understanding root-soil interactions for optimizing root development and plant adaptation. Tailoring water and nutrient management strategies to specific site conditions can enhance Chinese fir root architecture and productivity under varying environmental constraints.

Keyword :

Biomass allocation Biomass allocation Cunninghamia lanceolata Cunninghamia lanceolata Root distribution Root distribution Root-soil interaction Root-soil interaction Slope position Slope position Soil properties Soil properties

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GB/T 7714 Li, Linxin , Yan, Xiaoli , Tian, Yunlong et al. Root spatial distribution and architectural formation of Chinese fir plantations: changes in soil water and nutrients based on different slope positions [J]. | EUROPEAN JOURNAL OF FOREST RESEARCH , 2025 , 144 (6) : 1645-1657 .
MLA Li, Linxin et al. "Root spatial distribution and architectural formation of Chinese fir plantations: changes in soil water and nutrients based on different slope positions" . | EUROPEAN JOURNAL OF FOREST RESEARCH 144 . 6 (2025) : 1645-1657 .
APA Li, Linxin , Yan, Xiaoli , Tian, Yunlong , Zhao, Zihao , Wu, Shengxian , Farooq, Taimoor Hassan et al. Root spatial distribution and architectural formation of Chinese fir plantations: changes in soil water and nutrients based on different slope positions . | EUROPEAN JOURNAL OF FOREST RESEARCH , 2025 , 144 (6) , 1645-1657 .
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杉木硝态氮转运蛋白基因ClNRT1.1的克隆与表达
期刊论文 | 2025 , 21 (01) , 1-10 | 亚热带农业研究
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[目的]克隆了杉木硝态氮转运蛋白基因ClNRT1.1,并分析其生物信息学功能及在不同氮、磷环境下的表达特征,以期为培育氮、磷高效利用型杉木提供参考。[方法]以正常氮、磷处理的杉木幼苗为材料,通过RACE技术克隆ClNRT1.1基因,利用生物信息学工具分析其基因特征、蛋白质理化性质及结构,并通过转录组数据和实时荧光定量PCR检测添加硝态氮和低磷处理下ClNRT1.1的表达差异。[结果](1)生物信息学分析发现,ClNRT1.1编码一个由331个氨基酸组成的蛋白,具有显著的疏水性和稳定性。该蛋白包含主要促进子超家族(PLN00028)保守结构域,并拥有9个跨膜螺旋结构和9个疏水区。二级结构以α-螺旋为主,丝氨酸为主要磷酸化位点,启动子中存在多个响应植物生长、激素、光照及胁迫相关的顺式元件。与其他NRT基因的蛋白比对分析表明,ClNRT1.1在进化上高度保守,与日本柳杉相似度最高。(2)亚细胞定位分析表明,ClNRT1.1定位于细胞膜,可能发挥硝酸盐转运功能。(3)转录组测序结果表明,低磷和低氮处理均能诱导ClNRT1.1的表达量显著升高,而高氮处理显著抑制表达,尤其是低氮高磷处理下的表达量显著升高,表明ClNRT1.1参与杉木根系硝态氮的吸收和氮、磷互作调控。(4)实时荧光定量PCR结果显示,低磷胁迫诱导参试杉木家系ClNRT1.1基因显著上调表达,尤其是在24号家系中根的表达量较正常磷处理提高了3倍。在茎、叶中,低磷胁迫下ClNRT1.1基因的表达具有明显的家系特异性,10号和24号家系显著上调表达,65号家系则显著下调表达。[结论]ClNRT1.1通过跨膜转运硝酸盐及响应氮、磷协同信号,在杉木低磷适应性中发挥关键作用。本研究为杉木氮、磷养分高效遗传改良提供了新靶点。

Keyword :

低磷胁迫 低磷胁迫 基因克隆 基因克隆 杉木 杉木 硝态氮转运蛋白 硝态氮转运蛋白 磷协同 磷协同

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GB/T 7714 陈凡 , 曹睿倪 , 张娅静 et al. 杉木硝态氮转运蛋白基因ClNRT1.1的克隆与表达 [J]. | 亚热带农业研究 , 2025 , 21 (01) : 1-10 .
MLA 陈凡 et al. "杉木硝态氮转运蛋白基因ClNRT1.1的克隆与表达" . | 亚热带农业研究 21 . 01 (2025) : 1-10 .
APA 陈凡 , 曹睿倪 , 张娅静 , 赵铭臻 , 李明 . 杉木硝态氮转运蛋白基因ClNRT1.1的克隆与表达 . | 亚热带农业研究 , 2025 , 21 (01) , 1-10 .
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酸雨对杉木凋落叶分解过程土壤微生物的影响
期刊论文 | 2025 , 45 (04) , 337-346 | 森林与环境学报
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Abstract :

为揭示不同类型酸雨对杉木凋落叶分解过程中土壤微生物的影响,以13年生杉木林为研究对象,采用凋落袋分解方法,通过设置不同类型酸雨(硫酸型、硝酸型、混合酸型)野外模拟试验,分别在凋落叶分解180、360 d后取凋落叶覆盖下的土壤测定微生物群落组成及多样性,构建群落共现网络,研究不同类型酸雨对杉木凋落叶分解过程中土壤微生物群落组成、多样性及相互关系的影响。结果表明:酸雨处理后改变了土壤微生物部分优势类群相对丰度,凋落叶分解180 d时硝酸处理的土壤酸杆菌门相对丰度比对照显著增加7.35%(P<0.05),凋落叶分解360 d时混合酸处理的土壤放线菌门的相对丰度较对照显著增加38.8%(P<0.05),表明凋落叶分解时间和酸雨类型驱动了土壤优势菌门的演替。凋落叶分解时间对土壤微生物多样性的影响大于酸雨类型,土壤细菌群落的α多样性受凋落叶分解时间和酸雨类型的显著影响(P<0.05),而土壤真菌群落的α多样性仅对凋落叶分解时间敏感。酸雨类型对土壤细菌群落β多样性的影响大于土壤真菌群落。酸雨提高了土壤微生物互作网络的复杂性,促使土壤微生物间互动频率增加,抑制了土壤微生物协作,加剧了土壤微生物竞争。结合网络复杂度与互作关系变化,证明酸雨通过强化竞争性互作驱动土壤微生物群落从协作模式向竞争模式转变,酸雨类型从硫酸型向硝酸型转变过程中,土壤微生物群落的共现网络复杂度下降,微生物之间的竞争减少。

Keyword :

共现网络 共现网络 凋落叶分解 凋落叶分解 土壤微生物 土壤微生物 杉木林 杉木林 酸雨 酸雨

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GB/T 7714 艾宇 , 褚宣佑 , 刘雨晖 et al. 酸雨对杉木凋落叶分解过程土壤微生物的影响 [J]. | 森林与环境学报 , 2025 , 45 (04) : 337-346 .
MLA 艾宇 et al. "酸雨对杉木凋落叶分解过程土壤微生物的影响" . | 森林与环境学报 45 . 04 (2025) : 337-346 .
APA 艾宇 , 褚宣佑 , 刘雨晖 , 李明 , 吴鹏飞 , 马祥庆 . 酸雨对杉木凋落叶分解过程土壤微生物的影响 . | 森林与环境学报 , 2025 , 45 (04) , 337-346 .
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